Warsaw is a city in Hancock County, Illinois, United States. The population was 1,607 at the 2010 census, a decline from 1,793 in 2000. The city is notable for its historic downtown and the Warsaw Brewery, which operated for more than 100 years beginning in 1861 and, after renovation, reopened as a bar, restaurant and microbrewery in 2006.
Warsaw is located in southwestern Hancock County at 40°21′N 91°26′W (40.3552,-91.4329), near the state’s westernmost point. It is bordered to the northwest by the Mississippi River, which forms the state border with Iowa, and to the north by the city of Hamilton.
According to the 2010 census, Warsaw has a total area of 7.469 square miles (19.34 km), of which 6.52 square miles (16.89 km) (or 87.29%) is land and 0.949 square miles (2.46 km) (or 12.71%) is water.
As of the census of 2000, there were 1,793 people, 726 households, and 500 families residing in the city. The population density was 271.0 people per square mile (104.6/km²). There were 807 housing units at an average density of 122.0 per square mile (47.1/km²). The racial makeup of the city was 98.77% White, 0.11% African American, 0.17% Native American, 0.17% Pacific Islander, 0.06% from other races, and 0.73% from two or more races. Hispanic or Latino of any race were 0.89% of the population.
There were 726 households out of which 32.5% had children under the age of 18 living with them, 58.0% were married couples living together, 8.5% had a female householder with no husband present, and 31.1% were non-families. 27.4% of all households were made up of individuals and 15.2% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 3.02.
In the city, the population was spread out with 26.0% under the age of 18, 7.7% from 18 to 24, 25.8% from 25 to 44, 24.8% from 45 to 64, and 15.6% who were 65 years of age or older. The median age was 39 years. For every 100 females, there were 98.1 males. For every 100 females age 18 and over, there were 95.3 males.
The median income for a household in the city was $35,000, and the median income for a family was $39,808. Males had a median income of $29,770 versus $20,039 for females. The per capita income for the city was $18,279. About 6.4% of families and 8.0% of the population were below the poverty line, including 9.9% of those under age 18 and 7.2% of those age 65 or over.